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Full vulnerability report · 2026
CVE-2026-34588High confidence

OpenEXR has a signed 32-bit Overflow in PIZ Decoder Leads to OOB Read/Write

AcademySoftwareFoundation · openexr

Official source article: GitHub GHSA-588R-CR5C-W6HF ↗. Check the applicable product and release in the original source.

8.6HighCVSS 4.0
Recommended action
Patch only the product branches with a verified fix

High technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance. Verified remediation exists for at least one product or source, but 2 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityHighOperational priority:High, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • A structured source references public exploit or proof-of-concept material.
  • EPSS is 0.57% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict local access and enforce least privilege on affected hosts.
  • Increase monitoring for the attack path and post-exploitation behaviour described in the report.

Verification

  1. Confirm that the asset runs AcademySoftwareFoundation openexr and falls inside the recorded affected range.
  2. Verify the installed build against the product-specific fixed version after deployment.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: Within 30 daysRemediation target: Within 180 days

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Cross-source reconciliation

Remediation availability differs by product scope

Verified remediation exists for at least one product or source, but 2 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Distribution package intelligence

Release-specific package status

Alpine, Debian, ubuntu findings are scoped to the named distribution, release and source package. An absent finding does not mean a package is unaffected.

7 package states
Package result overrides the generic status

BlackTree has verified remediation for at least one product or source, but the relevant distribution still reports no fixed package for 2 affected package states shown here. Treat those rows as affected with no fix until that distribution publishes a fixed version.

Repository candidate not checked

A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.

Distribution releaseSource packageVendor stateFixed versionEvidence
Alpine v3.23v3.23 · communityopenexrVendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.3.4.13-r0Alpine Security Database ↗Source updated 11 Sep 2026
Alpine v3.22v3.22 · communityopenexrVendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.3.3.11-r0Alpine Security Database ↗Source updated 11 Sep 2026
Debian trixietrixie · sourceopenexrAffected, no fix publishedDebian currently tracks this release as open.Not published in this feedDebian Security Tracker ↗Source updated 6 Oct 2026
Debian bookwormbookworm · sourceopenexrAffected, no fix publishedDebian currently tracks this release as open.Not published in this feedDebian Security Tracker ↗Source updated 6 Oct 2026
Debian forkyforky · sourceopenexrVendor fix publishedDebian records a fixed source-package version for this release.3.4.14-0.1Debian Security Tracker ↗Source updated 6 Oct 2026
Debian sidsid · sourceopenexrVendor fix publishedDebian records a fixed source-package version for this release.3.4.14-0.1Debian Security Tracker ↗Source updated 6 Oct 2026
Ubuntu 24.04 LTSnoble · esm-appsopenexrVendor fix publishedCanonical reports that a fixed source package version has been published. Repository candidate availability is not checked by BlackTree.3.1.5-5.1ubuntu0.1~esm1Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Open-source package ranges3 source-attributed ranges

These OSV and GitHub advisory ranges apply only to the named package and ecosystem. A listed fixed version is not a universal product patch or proof that an update is installed.

Ecosystem and packageAffected rangeFirst fixed versionEvidence
pipOpenEXR>= 3.1.0, < 3.2.73.2.7GitHub advisory ↗upstream repository advisory · 8 Apr 2026
pipOpenEXR>= 3.3.0, < 3.3.93.3.9GitHub advisory ↗upstream repository advisory · 8 Apr 2026
pipOpenEXR>= 3.4.0, < 3.4.93.4.9GitHub advisory ↗upstream repository advisory · 8 Apr 2026
Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

1 current
CVE-2026-34588 · CSAF 2.0 · revision 3 · finalRed Hat Product SecurityOpenEXR: OpenEXR: Arbitrary code execution and information disclosure via crafted EXR file
7 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • OpenEXR-devel as a component of Red Hat Enterprise Linux 6
  • OpenEXR-libs as a component of Red Hat Enterprise Linux 6
  • OpenEXR.src as a component of Red Hat Enterprise Linux 6
  • OpenEXR as a component of Red Hat Enterprise Linux 7
  • OpenEXR-devel as a component of Red Hat Enterprise Linux 7
  • OpenEXR-libs as a component of Red Hat Enterprise Linux 7
  • OpenEXR.src as a component of Red Hat Enterprise Linux 7
Summary
A flaw was found in OpenEXR, an image storage format for the motion picture industry. A remote attacker could exploit an integer overflow vulnerability in the `internal_exr_undo_piz()` function by providing a specially crafted EXR file. This flaw leads to out-of-bounds reads and writes, which may allow for arbitrary code execution or sensitive information disclosure.
Remediation
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2026-19347

No EUVD known-exploited evidence

OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From 3.1.0 to before 3.2.7, 3.3.9, and 3.4.9, internal_exr_undo_piz() advances the working wavelet pointer with signed 32-bit arithmetic. Because nx, ny, and wcount are int, a crafted EXR file can make this product overflow and wrap. The next channel then decodes from an incorrect address. The wavelet decode path operates in place, so this yields both out-of-bounds reads and out-of-bounds writes. This vulnerability is fixed in 3.2.7, 3.3.9, and 3.4.9.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
8.6 · CVSS 4.0
Advisory evidence
No linked advisory details stored yet
Recommended actionPatch only the product branches with a verified fix

High technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance. Verified remediation exists for at least one product or source, but 2 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
01

What, why and how

OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From 3.1.0 to before 3.2.7, 3.3.9, and 3.4.9, internal_exr_undo_piz() advances the working wavelet pointer with signed 32-bit arithmetic. Because nx, ny, and wcount are int, a crafted EXR file can make this product overflow and wrap. The next channel then decodes from an incorrect address. The wavelet decode path operates in place, so this yields both out-of-bounds reads and out-of-bounds writes. This vulnerability is fixed in 3.2.7, 3.3.9, and 3.4.9.

What

OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From 3.1.0 to before 3.2.7, 3.3.9, and 3.4.9, internal_exr_undo_piz() advances the working wavelet pointer with signed 32-bit arithmetic. Because nx, ny, and wcount are int, a crafted EXR file can make this product overflow and wrap. The next channel then decodes from an incorrect address. The wavelet decode path operates in place, so this yields both out-of-bounds reads and out-of-bounds writes. This vulnerability is fixed in 3.2.7, 3.3.9, and 3.4.9.

Why

The product reads data past the end, or before the beginning, of the intended buffer.

How

An attacker operating through local access may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From 3.1.0 to before 3.2.7, 3.3.9, and 3.4.9, internal_exr_undo_piz() advances the working wavelet pointer with signed 32-bit arithmetic. Because nx, ny, and wcount are int, a crafted EXR file can make this product overflow and wrap. The next channel then decodes from an incorrect address. The wavelet decode path operates in place, so this yields both out-of-bounds reads and out-of-bounds writes. This vulnerability is fixed in 3.2.7, 3.3.9, and 3.4.9.

Why

The product reads data past the end, or before the beginning, of the intended buffer.

How

An attacker operating through local access may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
Reference recorded

A structured CVE source labels at least one public reference as exploit material. BlackTree has not independently validated that it is safe, reliable or weaponised.

Likely attack path
local access → Out-of-bounds Read → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Local
Privileges required
None: unauthenticated exploitation is possible
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Not a CVSS 4.0 base metric
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-125 ↗

CWE-125: Out-of-bounds Read. The product reads data past the end, or before the beginning, of the intended buffer.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Common Vulnerability Scoring System 4.0: the compact vector below is decoded into plain language.

AVLocalAttack vector: The attacker needs local access to the vulnerable system.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.ATNoneAttack requirements: No additional deployment or execution condition is required.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.VCHighVulnerable-system confidentiality: A successful attack can cause a major loss.VIHighVulnerable-system integrity: A successful attack can cause a major loss.VAHighVulnerable-system availability: A successful attack can cause a major loss.SCNoneSubsequent-system confidentiality: No direct loss is represented by this metric.SINoneSubsequent-system integrity: No direct loss is represented by this metric.SANoneSubsequent-system availability: No direct loss is represented by this metric.
Post-exploitation / living off the land
The issue can support a local privilege or sandbox boundary transition; normal system utilities may then be available in the gained context.
UnauthenticatedCWE-125Public exploit reference
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

ENISA EUVD · EUVD-2026-19347Official EUVD mapping

OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From 3.1.0 to before 3.2.7, 3.3.9, and 3.4.9, internal_exr_undo_piz() advances the working wavelet pointer with signed 32-bit arithmetic. Because nx, ny, and wcount are int, a crafted EXR file can make this product overflow and wrap. The next channel then decodes from an incorrect address. The wavelet decode path operates in place, so this yields both out-of-bounds reads and out-of-bounds writes. This vulnerability is fixed in 3.2.7, 3.3.9, and 3.4.9.

Official EUVD record ↗
BSI · German · WID-SEC-2026-1440Red Hat Enterprise Linux (openEXR): Schwachstelle ermöglicht Codeausführung

Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Red Hat Enterprise Linux (openEXR) ausnutzen, um beliebigen Programmcode auszuführen.

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2026-010381OpenEXRにおける複数の脆弱性

OpenEXRは、映画産業向けの画像保存フォーマットであるEXRファイルフォーマットの仕様およびリファレンス実装を提供します。バージョン3.1.0から3.2.7、3.3.9、3.4.9の前までにおいて、internal_exr_undo_piz()は32ビット符号付き整数演算で作業用ウェーブレットポインタを進めます。nx、ny、およびwcountはint型であるため、細工されたEXRファイルによってこの積がオーバーフローしラップアラウンドする可能性があります。そのため、次のチャンネルは不正なアドレスからデコードを行います。ウェーブレットのデコードパスはインプレースで動作するため、これにより範囲外の読み取りおよび書き込みが発生します。この脆弱性はバージョン3.2.7、3.3.9、および3.4.9で修正されています。

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Fix availability varies by product
Affected
Fixed
Action
Use the product-specific evidence above. Patch only products with a verified fixed release, and keep every affected or under-investigation state without a matching fix in the remediation queue.
Workaround
A mitigation or workaround reference is available from the source linked below; validate it against the affected product and version.
04

Evidence and provenance

Published 6 Apr 2026 · Last source change 9 Sept 2026, 12:05 UTC · CWE-125 · Out-of-bounds Read

CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2026-19347
Product sourceVendor CSAF · Red Hat Product Security
Remediation sourceVendor CSAF · Red Hat Product Security
CWE sourceCNA
NVD statusNVD modified after enrichment

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates ↗
  1. Affected versionsThe structured affected or fixed version information changed.
    Before
    OpenEXR-devel as a component of Red Hat Enterprise Linux 6; OpenEXR-libs as a component of Red Hat Enterprise Linux 6; OpenEXR.src as a component of Red Hat Enterprise Linux 6; OpenEXR as a component of Red Hat Enterprise Linux 7; OpenEXR-devel as a component of Red Hat Enterprise Linux 7; OpenEXR-libs as a component of Red Hat Enterprise Linux 7; OpenEXR.src as a component of Red Hat Enterprise Linux 7 · Fixed: openexr-0:3.1.10-8.el10_0.2.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); openexr-0:3.1.10-8.el10_0.2.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); openexr-0:3.1.10-8.el10_0.2.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); openexr-0:3.1.10-8.el10_0.2.src as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); openexr-0:3.1.10-8.el10_0.2.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); openexr-debuginfo-0:3.1.10-8.el10_0.2.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); openexr-debuginfo-0:3.1.10-8.el10_0.2.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); openexr-debuginfo-0:3.1.10-8.el10_0.2.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); openexr-debuginfo-0:3.1.10-8.el10_0.2.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); openexr-debugsource-0:3.1.10-8.el10_0.2.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); openexr-debugsource-0:3.1.10-8.el10_0.2.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); openexr-debugsource-0:3.1.10-8.el10_0.2.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); openexr-debugsource-0:3.1.10-8.el10_0.2.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); openexr-libs-0:3.1.10-8.el10_0.2.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); openexr-libs-0:3.1.10-8.el10_0.2.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); openexr-libs-0:3.1.10-8.el10_0.2.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); openexr-libs-0:3.1.10-8.el10_0.2.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); openexr-libs-debuginfo-0:3.1.10-8.el10_0.2.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); openexr-libs-debuginfo-0:3.1.10-8.el10_0.2.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); openexr-libs-debuginfo-0:3.1.10-8.el10_0.2.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); openexr-libs-debuginfo-0:3.1.10-8.el10_0.2.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); openexr-0:3.1.10-8.el10_1.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openexr-0:3.1.10-8.el10_1.2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); openexr-0:3.1.10-8.el10_1.2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); openexr-0:3.1.10-8.el10_1.2.src as a component of Red Hat Enterprise Linux AppStream (v. 10); openexr-0:3.1.10-8.el10_1.2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openexr-debuginfo-0:3.1.10-8.el10_1.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openexr-debuginfo-0:3.1.10-8.el10_1.2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); openexr-debuginfo-0:3.1.10-8.el10_1.2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); openexr-debuginfo-0:3.1.10-8.el10_1.2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); and 319 more
    After
    OpenEXR-devel as a component of Red Hat Enterprise Linux 6; OpenEXR-libs as a component of Red Hat Enterprise Linux 6; OpenEXR.src as a component of Red Hat Enterprise Linux 6; OpenEXR as a component of Red Hat Enterprise Linux 7; OpenEXR-devel as a component of Red Hat Enterprise Linux 7; OpenEXR-libs as a component of Red Hat Enterprise Linux 7; OpenEXR.src as a component of Red Hat Enterprise Linux 7 · Fixed: openexr-0:3.1.10-8.el10_0.2.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); openexr-0:3.1.10-8.el10_0.2.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); openexr-0:3.1.10-8.el10_0.2.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); openexr-0:3.1.10-8.el10_0.2.src as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); openexr-0:3.1.10-8.el10_0.2.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); openexr-debuginfo-0:3.1.10-8.el10_0.2.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); openexr-debuginfo-0:3.1.10-8.el10_0.2.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); openexr-debuginfo-0:3.1.10-8.el10_0.2.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); openexr-debuginfo-0:3.1.10-8.el10_0.2.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); openexr-debugsource-0:3.1.10-8.el10_0.2.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); openexr-debugsource-0:3.1.10-8.el10_0.2.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); openexr-debugsource-0:3.1.10-8.el10_0.2.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); openexr-debugsource-0:3.1.10-8.el10_0.2.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); openexr-libs-0:3.1.10-8.el10_0.2.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); openexr-libs-0:3.1.10-8.el10_0.2.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); openexr-libs-0:3.1.10-8.el10_0.2.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); openexr-libs-0:3.1.10-8.el10_0.2.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); openexr-libs-debuginfo-0:3.1.10-8.el10_0.2.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); openexr-libs-debuginfo-0:3.1.10-8.el10_0.2.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); openexr-libs-debuginfo-0:3.1.10-8.el10_0.2.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); openexr-libs-debuginfo-0:3.1.10-8.el10_0.2.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); openexr-0:3.1.10-8.el10_1.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openexr-0:3.1.10-8.el10_1.2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); openexr-0:3.1.10-8.el10_1.2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); openexr-0:3.1.10-8.el10_1.2.src as a component of Red Hat Enterprise Linux AppStream (v. 10); openexr-0:3.1.10-8.el10_1.2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openexr-debuginfo-0:3.1.10-8.el10_1.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openexr-debuginfo-0:3.1.10-8.el10_1.2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); openexr-debuginfo-0:3.1.10-8.el10_1.2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); openexr-debuginfo-0:3.1.10-8.el10_1.2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); and 320 more
    Red Hat Product Security ↗
  2. Affected versionsThe structured affected or fixed version information changed.
    Before
    >= 3.1.0, <= 3.1.13; >= 3.2.0, < 3.2.7; >= 3.3.0, < 3.3.9; >= 3.4.0, < 3.4.9 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    After
    openexr: >= 3.1.0, <= 3.1.13, >= 3.2.0, < 3.2.7, >= 3.3.0, < 3.3.9, >= 3.4.0, < 3.4.9 · Fixed: RHSA-2026:17656: Red Hat Enterprise Linux AppStream EUS (v. 10.0), Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
    CNA ↗
  3. Remediation statusRemediation status changed from Mitigation available to Patch available.
    Before
    Mitigation available
    After
    Patch available
    security-advisories@github.com ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2026-19347↗Vendor CSAF · Red Hat Product Security↗Public exploit reference · GitHub GHSA-588R-CR5C-W6HF↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2026-34588 · cve.blacktree.nl